Earlier this year, after taking Colloidal Silver for a couple of weeks, I developed symptoms indicative of Raynaud's ... the ice-cold fingers changing colors ... Needless to say it freaked me out, and I decided to share my experience with Colloidal Silver here because I read that people use it to fight Raynaud's. I took Colloidal Silver because after traveling around the globe, I had very persistent problems with my digestion that did not respond to anything else I tried; while the silver cleared it, I developed the other symptoms.
Luckily, and I hope this helps other Raynaud sufferers, I quickly found a remedy that worked and worked within a couple of days. It is the homeopathic remedy Folliculinum. I happened to have it in 30 C and took 2 pellets a day for only a few days, 3 or 4 maybe and have not had any Raynaud's symptoms again. A lower potency may be just as good. I am not a homeopath. Here is a link to read up on Folliculinum - http://hpathy.com/materia-medica/folliculinum-mist-or-miasm/